The TKD Bible !
A fantastic read and reference point.
Indispensible parent's handbook in providing extra coaching for youngsters.
An invaluable tool in supplementing formal training.

A must....
....for those of us who need to refer to our poomsae quickly. Tedeshci's texts (taekwondo and hapkido) would be a lot better, but they're big and are rather expensive.
Park and Park gives you a lot of bang for your buck, and the book can easily be stored in your briefcase, gymbag, etc.

Great reference for beginner and intermediate TKDers
Overall great reference guide to starting and intermediate tae kwon do students. Lists the applications and effectiveness of all most aspects of TKD with slideshow pictures to demonstrate correctly. Of course, don't think you can learn the whole martial art from a book; you will need to accommodate by training with an instructor.

The Best Reference Guide to Tae kwon do I have seen to date
This book is above par. I am a soldier deployed in Iraq and I purchased this book to continue my study while on deployment. It has accurate information and pictures to explain everything from the basics, to advanced level forms, and top notch sparring techniques. A great purchase.

Good reference
It is a good starting reference for those beginning about the sport. The pictures of the poomse are helpful but nothing takes the place of good instruction. I found it hard to rely on the pictures to do the forms.